What Gear oil to use in the trans 2000 jetta

TooSlick

Top Post Dawg
Joined
Dec 2, 1999
Location
Dixie
TDI
Audi 100S
The primary anti-wear compound in gear lubes is a highly reactive, sulphur-phosphorus additive. The GL-4 products contain about 50% lower additive treat levels of this S-P compound than an API/GL-5 oil, which improves their compatibility with brass & bronze syncros used in manual transmissions.

Both the Redline MTL & MT-90 are "GL-4" type products....
 
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